The Allison V-3420 was a large experimental piston aircraft engine, designed in 1937 by the American Allison Engine Company. In 1937, at the behest of...

Power-to-weight ratio: 1.05 hp/lb (1.76 kW/kg) Related development Allison V-3420 Comparable engines Daimler-Benz DB 601 and 605 Klimov VK-107 Rolls-Royce...

climb, using the most powerful liquid-cooled engine then available, the Allison V-3420. The program was cancelled after only a small number of prototypes and...

Aircraft Development Section of General Motors to be converted to use Allison V-3420-17 liquid-cooled W24 (twin-V12, common crankcase) inline engines. Fisher...

The Allison Engine Company was an American aircraft engine manufacturer. Shortly after the death of James Allison in 1929 the company was purchased by...

service in this role. In February 1943, use of another engine, the Allison V-3420, was necessary due to poor progress with the Tornado engine development...

1943, the Wright R-3350 engines were replaced with liquid-cooled W24 Allison V-3420-11 by the aircraft division of Fisher Body in support of the XB-39 project...

program. They were: Wright R-2160 "Tornado" Pratt & Whitney H-3130 Allison V-3420 Not to be left out, the US Navy selected the Lycoming XH-2470 for funding...

The Allison Model 250, now known as the Rolls-Royce M250, (US military designations T63 and T703) is a highly successful turboshaft engine family, originally...

Simultaneously, development of the XH-2470 engine was discontinued. Although the Allison V-3420 engine could be substituted, that required substantial airframe changes...